MAX186AEAP+

ADCs/DACs - Special Purpose Overview

The MAX186AEAP+ is a low-power, 8-channel, serial 12-bit analog-to-digital converter (ADC) from Analog Devices/Maxim Integrated. It integrates an 8-channel multiplexer, high-bandwidth track/hold circuitry, and a successive-approximation register (SAR) architecture. The device operates on a single +5V or dual ±5V supply, consuming 1.5mA in operating mode and 2µA in power-down mode. Key electrical specifications include a 133ksps sampling rate, internal 4.096V reference, and SPI/QSPI/MICROWIRE-compatible 4-wire serial interface. It supports software-configurable unipolar/bipolar and single-ended/differential inputs.

ADCs/DACs - Special Purpose Feature Summary

• 8-channel multiplexer with software-selectable single-ended or differential input configurations
• Internal 4.096V reference voltage with buffer amplifier for simplified gain trimming
• Ultra-low power consumption: 1.5mA active, 2µA full power-down, <10µA between conversions
• Flexible serial interface compatible with SPI, QSPI, MICROWIRE, and TMS320 DSPs

ADCs/DACs - Special Purpose Applications

• Portable data logging systems
• High-accuracy process control instrumentation
• Automatic testing equipment
• Battery-powered medical instruments

ADCs/DACs - Special Purpose Procurement Notes

Verify the package type matches the 'A' suffix designation (SSOP). Confirm the grade 'E' indicates the -40°C to +85°C industrial temperature range. Ensure the '+' suffix confirms lead-free/RoHS compliance status as per manufacturer standards. Cross-reference the specific ordering code against current availability lists as older grades may be discontinued.

ADCs/DACs - Special Purpose Selection Notes

Select the MAX186 variant over MAX188 if an internal 4.096V reference is required to minimize external component count. Choose the SSOP package for space-constrained designs, noting it occupies 30% less area than PDIP. Ensure the application supports the 133ksps maximum sampling rate and 12-bit resolution requirements. Verify supply voltage compatibility with single +5V or dual ±5V rails.

ADCs/DACs - Special Purpose Part Context

The MAX186AEAP+ belongs to the MAX186/MAX188 family of low-power, 8-channel, serial 12-bit ADCs. This series combines data-acquisition system functions including multiplexing, tracking, and serial interfacing into a single IC. The 'E' grade specifies the extended industrial temperature range, while the 'A' suffix denotes the shrink small-outline package (SSOP).

ADCs/DACs - Special Purpose Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.